Pencil eraser



I Feb. 19 1924. 1,483,957

' .N. T. TRYGGE y Y Tlgggel INVENTOR.

ATTORNEYS. l

i15 a novel combination and arrangementof 20 specification.

'tigrapp `als ig. 2 isr a longitudinal section thereof, andA l denotes a pagina rei.` iafieza.

- uNiTEDf-STATES www mns r. maroon, orcnrcnoo; minors.

' PENCIL application ana any 4, 'ioaalselriai no, s1s,aaa.' aenewai my 26,1923. i anni in; uam.

To all whom z't mag/concern.' f l Be it knownthat I, N T. Tamedia,- .citizen of the vUnited States,J residing.' at Chicago, in the county of Cook -and( State o f l Illinois, have invented new and useful Im-v provements in Pencil AErasers, of vwhich the followingis a specification. v i

. This invention relates to lead pencils which are provided with eraser ti and its -object l0 lis to rovide a device of t is kind which is especially adapted for drawing pencils, and

also to rovide thedevice with an eraser rubber which can be cheaply applied. v The object stated is attained by means ofl parts to be hereinafter described andA claimed, and: in order that the same may be better understood, lreference is had to the siccompanying drawing forming apart of this In the drawing, Figure 1 is an elevationof a fragment 'o f alead encil showing my improved leraser lied thereto; l

Fi 3 is a cross section-oi'i--the line ofFig.' 1. Y. v Re erriig specifically to -the drawing, 5'

rawing ncilwhi'ch is Yof heimg-4 ao onal or other -po ygonal cross-section, v'as usual. To the butt end of the-pencil is fit-ted a ferrule 6 having'a projecting portion 7i which carries the erasenrubber, 8. AThe vpart -71 iseorrugatedfto obtain a vtight 35 grip on the rubber 8, landfill desired these.

corrugations m'yzbe helical similar-,toa "screw-thread.v

8 to a minimum, its vporti'on'ilwhich is held@l aiything when the vo a `ferrulei lalso has an openin '10 to expose l the usual number imprinte to :denote its hardness: The.- ferrule will forced on `the it is tightly hel in place thereon.

' I claim a ferrule adapted to be vend of a pencil to proiect therefrom, and an and inferior to thatgof the projecting .portion thereof.'4 1

in theI ferrule extension 7 may a chea r 0 quality of rubber, a oodgi'ade of rub r lbeing om loyed only. or the projecting portionwhic is in actual-use; or any other suitable cheap material may beA substituted for the inner portion 9 ofthe rubber.v Itwill be understood of course, that. the two sections of the rubber will bgu'nid to fo -one integral plug, f

Thefemiie a is poiygon'i fuseaction to conform to the` cross-sectional contour of.

the, pencil 5,-and its-inner'- end or: edge is `rounded olf. to preventfcatching on encil is teken-fout. pocket orl -hand "tosoinje-aonep Thev onthe pencil also have a slight taper so-that itmust be Yneil with .the result that .o

r Thatportioxi of the ferrule '6 immediately to the rear. of the buttendof the pencil@ has a deep` circumferential indentation 'l1 flfmng a stop to limit the vententto which the pe'ncilmay insel-'tule 1 u An eraser tip for lead ncils com rising ttedover t e butt 1 'eraserA rubberr held inthe projecting portion 70 of the ferrule and projecting therefrom, that rtion of the rubber which seats in the rrule being Aofa materialdiiferent vfrom 

